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(No Model.)

' -W. GOODHUE.

AUTOMATIC INDICATOR. No. 369,639. t Patented Sept. 6, 1887.

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Nrrnn STATES PATENT OFFICE.

WELLS GOODHUE, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO GEORGE J.ADAMS, OF SAME PLACE.

AUTOMATIC INDlcAToa.

SPECIFICATION fming part of Letters Patent No. 369,639, dated September6, 1887.

Application filed March 9, 1887. Serial No. 230,314. (No modeLl T0 allwhom it may concern.-

Be it known that I, WELLs .Goonnna a citizen of the United States, and aresident of Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improved Automatic Indicator; and I dohereby declare the following to be a full, clear, and exact descriptionof the same, reference vbeing had to the accompanying drawings, forminga part of this specification.

This invention relates to mechanism for use on doors and other likearticles for giving an indication ot' the engagement or disengagement'ofthe party occupying the room to the door of which said mechanism isapplied; and

' the object of the present invention is mainly to provide anautomaticallyacting device for operating a suitable .indicating or othermechanism attached to the door, and which will indicate when the personusing the room is engaged. I attain such object by mechanism essentiallyas shown in the accompanying drawings, in which- Figure l is anelevation, partly sectionized, showing my invention adapted to the doorof a room; Fig. 2, a horizontal section ofthe saine. Figs. 3 and 4 aredetail views of modiiied forms of my invention,and Fig. 5 a detailhorizontal section of another moditied form of the same.

Similar letters ofreference indicatelike parts in the several views.

Referring to the drawings, A represents a central portion of a door, andB the frame or jamb of the same.

C is the name-plate inserted in the door, as shown, and carrying inaddition to the name of the occupant of the oliice a suitable legend ornotice-snch, forinstance, as the word engaged-such notice or legendbeing adapted to be covered or hid,when the party is disengaged, bymeans of the following mechanism:

D is a plate preferably arranged to move in a-vertical direction infront of said notice ori legend and receiving motion 'from a bell-cranklever, E, which in t'nrn is operated by aspringbolt, F, arrangedhorizontally in the door, as shown,\vith its free end adapted to bearagainst the jamb B of the door on the side adjacent to the hinges of thesame, so that the closing of the door will tend to automatically forcesaid bolt inwardly against its operating-spring F',

the tendency of which spring is to push said bolt outward. The pushinginof said bolt will, through the bellcrank lever E, force the plate Ddownward and expose the legend o r notice to view. The end of thespring-bolt is made adjustable in the shape of a button, f, screwingupon said end and forming an abutment for one end of theoperating-spring F. The purpose of this construction is to admit of suchbutton screwing in flush with the edge of the door, so as to rendertheindicating mechanism inoperative when required.

The housing F2 for the end of the spring-bolt will be of a cupshape toadmit of the ready adjustment of the buttonf. As modifications of myimprovement, the plate D may forman integral part of the bell-cranklever E,` as indicated in Fig. 3. Again, such plate may be arranged toslide horizontally instead of vertically, as before described, withoutdeparting from the spirit of my invention, as indicated in Fig. 4; or,the plate D may be so modified as to have a turning instead of a liftingmotion, in which case it would be ofacircular or sector shape, asindicated in Fig. 5.

I claiml. In an automatic indicator for use on doors, the combination ofa spring-bolt the free end of which contacts with the janib of the dooradjacent to the hinges, and an indicating-plate connected to andactuated by the spring-bolt in manner substantially as herein described,and for the purpose set forth.

2. In an automatic indicator for use on doors, the combination of aspring-bolt the free end of which contacts with the jamb of the door andis provided with anA adjustable button, f, with an indicating-plateconnected to and actugo ated by the springbolt in manner substanv tiallyas herein described, and for the purpose set forth.

3. The combination of plate D, bell-crank lever E, and spring-bolt F,with the door A and jamb B, the parts being arranged and adapted tooperate in manner substantially as herein described.

In testimony whereof witness my hand this 5th day of March, 1887. WELLSGOODHU I Y- In presence of Guo. J. ADAM, Rom?. BURNS.

